EP0240532A1 - Tree shelters. - Google Patents

Tree shelters.

Info

Publication number
EP0240532A1
EP0240532A1 EP86905894A EP86905894A EP0240532A1 EP 0240532 A1 EP0240532 A1 EP 0240532A1 EP 86905894 A EP86905894 A EP 86905894A EP 86905894 A EP86905894 A EP 86905894A EP 0240532 A1 EP0240532 A1 EP 0240532A1
Authority
EP
European Patent Office
Prior art keywords
shelter
tree
shelters
stake
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86905894A
Other languages
German (de)
French (fr)
Other versions
EP0240532B1 (en
Inventor
Graham Frank Hurlstone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tubex Ltd
Original Assignee
Tubex Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tubex Ltd filed Critical Tubex Ltd
Priority to AT86905894T priority Critical patent/ATE70944T1/en
Publication of EP0240532A1 publication Critical patent/EP0240532A1/en
Application granted granted Critical
Publication of EP0240532B1 publication Critical patent/EP0240532B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0243—Protective shelters for young plants, e.g. tubular sleeves
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • A01G13/10—Devices for affording protection against animals, birds or other pests

Definitions

  • This invention relates to tree shelters.
  • a tree shelter is a usually tubular, but sometimes conical, structure formed of translucent plastics material that is disposed around a newly-planted tree and secured to a stake extending inside or outside the structure. Since their introduction in 1979 tree shelters have proved their value in promoting the growth of a young tree by establishing a favourably micro-climate; supporting the tree; protecting the tree from wind or animal damage; and enabling the intervening ground to be treated chemically to deter the growth of competing vegatation.
  • Currently available pre-formed tubular tree shelters may be of one of the following types:
  • a tube of square or hexagonal cross-section formed by folding. corrugated polypropylene sheet and joining the longitudinal edges with a lap seam secured by welding or stapling.
  • All the above types of tree shelter are normally secured to the stake, whether this is located internally or externally, by wire ties. These have the disadvantages of being difficult and time-consuming to apply, particularly when they have to be threaded round an internal stake; of allowing pivotal movement of a shelter secured to an external stake; of being liable to become embedded in the trunk of a growing tree; and of being a danger to animals on the eventual disintegration of the shelter.
  • a tree shelter comprising a hollow, elongate, open-ended body, formed of translucent or transparent plastics material and having a longitudinally-extending external channel or a socket for the reception of a stake.
  • a socket no additional fastening is required and in the case where the stake is located in a channel two simple straps or ties are adequate to secure the shelter.
  • a non-releasable cable tie In place of the normal horticultural or arboricultural type, it is preferred to use, according to the present invention, a non-releasable cable tie.
  • the body is a tube and is formed by extrusion of a plastics material such as a polypropylene, polystyrene or polycarbonate.
  • the tube generally has twin walls connected by radially ⁇ disposed webs, while the walls of the socket or channel are solid.
  • Young trees are very susceptible to chafe damage from the upper edge of the shelter and according to a further aspect of the present invention there is provided a tree shelter formed at one end with a lip or flange extending outwardly beyond the outer surface of the body.
  • a tree shelter formed at one end with a lip or flange extending outwardly beyond the outer surface of the body.
  • a shelter is also in accordance with the first aspect of the invention.
  • a shelter according to the present invention may be provided with upper and lower circumferential indenta- tions for reception of a strap or tie.
  • the shelter according to the present invention is preferably camouflaged by painting the external surface of the tube in green and brown by means of silk screen printing.
  • the afore ⁇ mentioned disadvantage of rigid shelters is greatly alleviated by the provision of a set of shelters, each comprising a hollow body preferably formed with a channel for reception of a stake, and having different cross- sectional dimensions so chosen that the set may be nested.
  • suchan .assembly of nesting shelters has four members, the smallest one of which has a diameter of the optimum minimum diameter of 8 cm, thus achieving a very acceptable packing ratio of 4 : 1.
  • the nesting shelters preferably exhibit the previously mentioned preferred features.
  • Figure 1 is an elevation of a tree shelter accor ⁇ ding to the invention before installation showing the stake-receiving recess;
  • Figure 2 is a plan of the shelter of Figure 1;
  • Figure 3 is another elevation of the tree shelter, taken from the side as seen in Figure 1, installed around a young tree;
  • Figure 4 is a plan, partly broken away and corres ⁇ ponding to Figure 3 of the installed shelter with the tree omitted;
  • Figure 5 is a vertical section through the shelter of Figure 1, as one of a nesting set of shelters; and Figure 6 is a plan of a modification of the shelter of Figures 1 to 4.
  • a tree shelter 10 comprises a polypropylene extrusion cut to a required length, for example 1.2 , and having around its arcuate portion 12 twin walls 14,16 (see Fig. 2) joined by regularly spaced webs 18, thus giving a very robust but lightweight structure.
  • Two solid, plane mutually- perpendicular walls 20,22 define a V-section channel 24 for reception of a stake 26 driven into the ground 27.
  • the shelter 10 is formed with a lip 28 around its arcuate portion 12 so as to minimise damage to the shoots, bark, stem or branches of a young tree 30 growing therein. (It will be noted that the lip 28 extends beyond the -external diameter of the arcuate portion 12).
  • the shelter 10 is secured to the stake 26 by two ratchet-locking plastics cable ties 32 of the type sold under the Trade Mark of, for example, Insulox or Fastex, the ties passing through apertures in the portion 12 and behind the channel 24.
  • the shelter 10 may be opal, green or brown in colour and provides the facility of being camouflaged, for example to give a twig and leaf effect, by silk screen printing.
  • the shelter 10 forms one of a set of four shelters 10, 32, 34, 36 having cross-sectional dimensions chosen so that the shelter 32 will just fit within the shelter 10 and so on, to make a nesting set of four shelters, the lip 28 on each shelter serving to prevent it from being inserted too far into the receiving shelter.
  • the smallest shelter 36 has an internal diameter of the recommended minimum of 8.0 cm, and the shelters 34, 32,10 successively greater diameters. Because the four shelters 10,32,34,36 take up virtually only the volume of the single shelter 10, packing and transport costs are greatly reduced, and use on difficult sites facilitated.
  • the square-section stake 26 is driven into the ground 27 near the newly-planted tree 30 and the shelter 10 slid over the tree 30 so that the stake 26 is received in the channel 24. It is then a simple matter to pass the free end of each tie 32 through the eye 38 and pull the ends until the stake 26 is firmly secured against the shelter 10. Because the shelter 10 is located against the stake only by the walls 20,22, a wide range of variation in stake dimensions can be tolerated, thus permitting the use of cheap stakes. While the shelters 10,32,34,36 remain very strong over the early years of their life, they are manufactured from a UV-initiated degradable polypropylene so that they disintegrate after about 5 to 7 years, thus dispensing with the need to remove them. The remains of the shelter and the plastics ties (which do not, as can wire ties, become embedded in the tree) are harmless to animals. Moreover, the twin-wall construction creates a "greenhouse" effect which helps to promote fast growth of the tree within the shelter.
  • FIG 6 a shelter 40 which generally resembles the shelter 10 except that it is provided with two additional walls 42,44 so as to form a square-section shelter for reception of a stake (not shown) . While the shelter 40 requires the use of accurately dimensioned, and therefore more expensive, wooden stakes, no ties are required with a consequent saving in cost and labour.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Environmental Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Birds (AREA)
  • Zoology (AREA)
  • Protection Of Plants (AREA)
  • Catching Or Destruction (AREA)
  • Organic Insulating Materials (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Dental Preparations (AREA)
  • Details Of Indoor Wiring (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Materials For Medical Uses (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Table Devices Or Equipment (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Insulated Conductors (AREA)
  • Inorganic Insulating Materials (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

Un abri pour arbres (10) comprend un élément extrudé tubulaire à double paroi en polypropylène dégradable par les rayons ultraviolets et comportant une lèvre ou rebord (28) recourbé vers l'extérieur à son extrémité supérieure et un canal longitudinal de section en V recevant un pieu (26) pouvant être fixé dans le canal à l'aide de deux câbles d'attache (32) à verrouillage par cliquet.A tree shelter (10) comprises an extruded tubular double-walled polypropylene element degradable by ultraviolet rays and comprising a lip or flange (28) curved outwards at its upper end and a longitudinal channel of V-shaped section receiving a pile (26) which can be fixed in the channel by means of two fastening cables (32) with ratchet locking.

Description

TREE SHELTERS
This invention relates to tree shelters.
A tree shelter is a usually tubular, but sometimes conical, structure formed of translucent plastics material that is disposed around a newly-planted tree and secured to a stake extending inside or outside the structure. Since their introduction in 1979 tree shelters have proved their value in promoting the growth of a young tree by establishing a favourably micro-climate; supporting the tree; protecting the tree from wind or animal damage; and enabling the intervening ground to be treated chemically to deter the growth of competing vegatation. Currently available pre-formed tubular tree shelters may be of one of the following types:
1) A tube of square or hexagonal cross-section formed by folding. corrugated polypropylene sheet and joining the longitudinal edges with a lap seam secured by welding or stapling.
2) A rigid cylinder of extruded polypropylene.
3) A flexible tube of circular cross-section having circumferential ridges which is extruded from polypropylene and resembles a land drainage pipe. All the above types of tree shelter are normally secured to the stake, whether this is located internally or externally, by wire ties. These have the disadvantages of being difficult and time-consuming to apply, particularly when they have to be threaded round an internal stake; of allowing pivotal movement of a shelter secured to an external stake; of being liable to become embedded in the trunk of a growing tree; and of being a danger to animals on the eventual disintegration of the shelter.
According to a first aspect of the present invention these disadvantages are overcome by a tree shelter comprising a hollow, elongate, open-ended body, formed of translucent or transparent plastics material and having a longitudinally-extending external channel or a socket for the reception of a stake. In the case of a socket no additional fastening is required and in the case where the stake is located in a channel two simple straps or ties are adequate to secure the shelter. In place of the normal horticultural or arboricultural type, it is preferred to use, according to the present invention, a non-releasable cable tie.
Preferably the body is a tube and is formed by extrusion of a plastics material such as a polypropylene, polystyrene or polycarbonate. In a preferred construction the tube generally has twin walls connected by radially ■ disposed webs, while the walls of the socket or channel are solid. Young trees are very susceptible to chafe damage from the upper edge of the shelter and according to a further aspect of the present invention there is provided a tree shelter formed at one end with a lip or flange extending outwardly beyond the outer surface of the body. Advantageously such a shelter is also in accordance with the first aspect of the invention.
A shelter according to the present invention may be provided with upper and lower circumferential indenta- tions for reception of a strap or tie.
Moreover, the shelter according to the present invention is preferably camouflaged by painting the external surface of the tube in green and brown by means of silk screen printing.
One of the advantages of the aforementioned lay- flat square or hexagonal cross-section shelter over a rigid extruded shelter of circular cross-section is that the sleeve may be packed and transported in flat condition thus enabling a very favourable packing ratio of eight folded tubes to one open tube to be achieved. The achievement of a favourable packing ratio is particularly important where the shelters are to be established at a remote or inaccessible site, besides reducing normal packing and transport costs.
According to the present invention the afore¬ mentioned disadvantage of rigid shelters is greatly alleviated by the provision of a set of shelters, each comprising a hollow body preferably formed with a channel for reception of a stake, and having different cross- sectional dimensions so chosen that the set may be nested.
Preferably, suchan .assembly of nesting shelters has four members, the smallest one of which has a diameter of the optimum minimum diameter of 8 cm, thus achieving a very acceptable packing ratio of 4 : 1.
The nesting shelters preferably exhibit the previously mentioned preferred features.
Although the invention may be carried out in a variety of ways, two embodiments thereof will now be described, by way of example, with reference to the accompanying drawings in which
Figure 1 is an elevation of a tree shelter accor¬ ding to the invention before installation showing the stake-receiving recess;
Figure 2 is a plan of the shelter of Figure 1;
Figure 3 is another elevation of the tree shelter, taken from the side as seen in Figure 1, installed around a young tree;
Figure 4 is a plan, partly broken away and corres¬ ponding to Figure 3 of the installed shelter with the tree omitted;
Figure 5 is a vertical section through the shelter of Figure 1, as one of a nesting set of shelters; and Figure 6 is a plan of a modification of the shelter of Figures 1 to 4.
As shown in Figures 1 to 4 a tree shelter 10 comprises a polypropylene extrusion cut to a required length, for example 1.2 , and having around its arcuate portion 12 twin walls 14,16 (see Fig. 2) joined by regularly spaced webs 18, thus giving a very robust but lightweight structure. Two solid, plane mutually- perpendicular walls 20,22 define a V-section channel 24 for reception of a stake 26 driven into the ground 27. At one end the shelter 10 is formed with a lip 28 around its arcuate portion 12 so as to minimise damage to the shoots, bark, stem or branches of a young tree 30 growing therein. (It will be noted that the lip 28 extends beyond the -external diameter of the arcuate portion 12). The shelter 10 is secured to the stake 26 by two ratchet-locking plastics cable ties 32 of the type sold under the Trade Mark of, for example, Insulox or Fastex, the ties passing through apertures in the portion 12 and behind the channel 24.
The shelter 10 may be opal, green or brown in colour and provides the facility of being camouflaged, for example to give a twig and leaf effect, by silk screen printing.
As shown in Figure 5 the shelter 10 forms one of a set of four shelters 10, 32, 34, 36 having cross-sectional dimensions chosen so that the shelter 32 will just fit within the shelter 10 and so on, to make a nesting set of four shelters, the lip 28 on each shelter serving to prevent it from being inserted too far into the receiving shelter. The smallest shelter 36 has an internal diameter of the recommended minimum of 8.0 cm, and the shelters 34, 32,10 successively greater diameters. Because the four shelters 10,32,34,36 take up virtually only the volume of the single shelter 10, packing and transport costs are greatly reduced, and use on difficult sites facilitated. To install the shelter 10 the square-section stake 26 is driven into the ground 27 near the newly-planted tree 30 and the shelter 10 slid over the tree 30 so that the stake 26 is received in the channel 24. It is then a simple matter to pass the free end of each tie 32 through the eye 38 and pull the ends until the stake 26 is firmly secured against the shelter 10. Because the shelter 10 is located against the stake only by the walls 20,22, a wide range of variation in stake dimensions can be tolerated, thus permitting the use of cheap stakes. While the shelters 10,32,34,36 remain very strong over the early years of their life, they are manufactured from a UV-initiated degradable polypropylene so that they disintegrate after about 5 to 7 years, thus dispensing with the need to remove them. The remains of the shelter and the plastics ties (which do not, as can wire ties, become embedded in the tree) are harmless to animals. Moreover, the twin-wall construction creates a "greenhouse" effect which helps to promote fast growth of the tree within the shelter.
In Figure 6 is shown a shelter 40 which generally resembles the shelter 10 except that it is provided with two additional walls 42,44 so as to form a square-section shelter for reception of a stake (not shown) . While the shelter 40 requires the use of accurately dimensioned, and therefore more expensive, wooden stakes, no ties are required with a consequent saving in cost and labour.
It will be appreciated that all the above-described shelters are supported by external or sleeved stakes and there is thus no danger of damage to the young tree from preservative fumes.

Claims

CLAIMS :
1. A tree shelter comprising a hollow, elongate, open- ended body formed of translucent or transparent plastics material and having a longitudinally-extending external channel or a socket for the reception of a stake.
2. A shelter as claimed in Claim 1, in which the body is formed at one end with an out-turned lip or flange.
3. A tree shelter comprising a hollow, elongate, open-ended body formed of translucent or transparent plastics material, characterised in that the body has an out-turned lip or flange at one end thereof.
4. A shelter as claimed in Claim 3 and having a longitudinally-extending external channel or a socket for reception of a stake.
5. A shelter as claimed in any preceding claim, in which the body is of tubular form.
6. A shelter as claimed in any preceding claim and having a longitudinally-extending channel in which the stake is securable by means of two straps or ties each passing through apertures in the wall of the body adjacent said channel.
7. A shelter as claimed in Claim 6, in which the ties are non-releasable cable ties.
8. A shelter as claimed in any preceding claim in which the body is formed with spaced twin walls.
9. A shelter as claimed in any preceding claim, in which the plastics material is polypropylene, polystyrene or polycarbonate degradable by UV light.
10. A set of tree shelters characterised in that each member has a different cross-sectional configuration chosen to allow the members to be nested.
11. A nestable set as claimed in Claim 10, each member being as claimed in any one of Claims 1 to 9.
12. A nestable set as claimed in Claim 10 or 11 and having four members.
13. A tree shelter as claimed in Claim 1 or 2, or a set of shelters as claimed in Claim 9, and substantially as hereinbefore described.
14. A tree shelter substantially as hereinbefore described with reference to Figs. 1 to 4 or 6, or a set of tree shelters substantially as hereinbefore described with reference to Fig. 5 of the accompanying drawings.
EP19860905894 1985-10-04 1986-10-02 Tree shelters Expired - Lifetime EP0240532B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86905894T ATE70944T1 (en) 1985-10-04 1986-10-02 TREE PROTECTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858524506A GB8524506D0 (en) 1985-10-04 1985-10-04 Tree shelters
GB8524506 1985-10-04

Publications (2)

Publication Number Publication Date
EP0240532A1 true EP0240532A1 (en) 1987-10-14
EP0240532B1 EP0240532B1 (en) 1992-01-02

Family

ID=10586180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860905894 Expired - Lifetime EP0240532B1 (en) 1985-10-04 1986-10-02 Tree shelters

Country Status (12)

Country Link
US (2) USD298998S (en)
EP (1) EP0240532B1 (en)
JP (1) JPS63501762A (en)
AT (1) ATE70944T1 (en)
AU (1) AU600678B2 (en)
CA (1) CA1300883C (en)
DE (1) DE3683285D1 (en)
DK (1) DK160851C (en)
FI (1) FI86790C (en)
GB (1) GB8524506D0 (en)
NO (1) NO163161C (en)
NZ (1) NZ217796A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257005B (en) * 1991-05-03 1994-11-09 Norflex Limited Plant shelters
US5347750A (en) * 1992-03-20 1994-09-20 Thomas Mills Plant protector apparatus and method
US5323566A (en) * 1992-03-20 1994-06-28 Mills Thomas B Plant protector apparatus and method
US6357172B1 (en) 1997-06-10 2002-03-19 Teel Plastics, Inc. Plant protector
CA2212603C (en) * 1997-08-06 2006-05-16 Daolin Liang Collapsable plant shelter
US6138404A (en) * 1997-09-25 2000-10-31 Treessentials Company Seedling growth enhancing device
US6119392A (en) * 1997-10-29 2000-09-19 Treessentials Company Seedling growth enhancing device
US6024048A (en) * 1998-04-28 2000-02-15 Potente; John E Pole sleeve
AU138147S (en) * 1999-02-10 1999-08-09 Vine guard
US6532894B2 (en) * 2000-03-15 2003-03-18 Raymond P. Johnson Anti-squirrel and rodent attachment kit
NL1016413C2 (en) * 2000-10-16 2002-04-18 Wilhelmus Arnoldus Mar Janssen Plant guide column, as well as an assembly comprising a number of such columns, and a canopy.
US8533991B2 (en) 2010-04-26 2013-09-17 Plantra, Inc. Thermoformed grow tube
US8745920B1 (en) * 2010-06-08 2014-06-10 Thomas Mills Protective device for plants, seedlings, and trees
JP5452652B2 (en) * 2012-04-02 2014-03-26 Ａｐｄ株式会社 Crop shade cultivation equipment
USD796279S1 (en) * 2016-03-16 2017-09-05 Sherrill Barina Tree trunk shield
USD854386S1 (en) 2016-09-29 2019-07-23 Mariplast North America, Inc. Vegetative sheath
USD809964S1 (en) * 2016-11-22 2018-02-13 Syndicate Sales, Inc. Combination plant holder and amplifier
CN107155771B (en) * 2017-05-27 2020-10-30 南丹县林业局 Seedling co-planting method for bougainvillea spectabilis and long green leaf trees
ZA201808594B (en) * 2017-12-20 2019-08-28 Berry Global Inc Shelters for plants
USD995240S1 (en) * 2021-12-08 2023-08-15 Jd Thornton Nurseries Inc. Guard for trunk and large limb transport

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US361241A (en) * 1887-04-12 Celery-collar
US770461A (en) * 1904-09-20 Tree-protector
US645518A (en) * 1898-12-30 1900-03-13 Thompson & Norris Company Tree-protector.
GB149102A (en) * 1919-05-27 1920-08-12 George Henry Tonks A novel or improved device for use when moulding up celery and the like
US1485924A (en) * 1923-02-28 1924-03-04 William H Hobbs Plant protector
GB613721A (en) * 1946-06-27 1948-12-02 Charles Richard Hemsley An improved plant supporting stake and clip means for use therewith
GB769696A (en) * 1954-01-28 1957-03-13 Charles Tierney Protector of brassica crops and other plants
US3384992A (en) * 1964-07-09 1968-05-28 G I Plastics Corp Plant shelter
US3816959A (en) * 1972-04-17 1974-06-18 G Nalle Plastic guard for protecting young trees, plants, and flowers
GB2128462A (en) * 1982-10-21 1984-05-02 Dr Richard William Towler Protecting young trees
FR2536247A1 (en) * 1982-11-22 1984-05-25 Vatan Philippe Device provided for fastening together two elements and which can be used particularly in arboriculture for training purposes.
GB2143712A (en) * 1983-07-29 1985-02-20 Keith Derek Jeffs Tree protection sleeve support clips
GB2148684B (en) * 1983-11-04 1987-11-18 Corruplast Ltd Apparatus for protecting a plant
GB2160582B (en) * 1984-06-19 1987-04-08 Automotive Products Plc A ball and socket joint
US4596106A (en) * 1984-10-17 1986-06-24 Kunczynski Jan K Ski lift towe safety apron
US4699347A (en) * 1986-05-23 1987-10-13 Kuhnley Shirley J Christmas tree stand
US4711051A (en) * 1986-11-04 1987-12-08 Fujimoto Sachi M Nestable mini-greenhouse apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8701904A1 *

Also Published As

Publication number Publication date
EP0240532B1 (en) 1992-01-02
DK160851B (en) 1991-04-29
GB8524506D0 (en) 1985-11-06
FI86790C (en) 1992-10-26
US4899486A (en) 1990-02-13
FI86790B (en) 1992-07-15
AU6401686A (en) 1987-04-24
NO163161C (en) 1990-04-18
NZ217796A (en) 1989-03-29
AU600678B2 (en) 1990-08-23
NO872337D0 (en) 1987-06-03
DE3683285D1 (en) 1992-02-13
USD298998S (en) 1988-12-20
DK285287D0 (en) 1987-06-03
DK160851C (en) 1991-10-14
FI872449A0 (en) 1987-06-02
JPS63501762A (en) 1988-07-21
ATE70944T1 (en) 1992-01-15
DK285287A (en) 1987-06-03
CA1300883C (en) 1992-05-19
FI872449A (en) 1987-06-02
NO872337L (en) 1987-06-03

Similar Documents

Publication Publication Date Title
EP0240532B1 (en) Tree shelters
WO1987001904A1 (en) Tree shelters
US3579908A (en) Support for growing plants
US4870781A (en) Combination tree support and feeder stake
US5347750A (en) Plant protector apparatus and method
US3875699A (en) Plastic grape stake
US6269589B1 (en) Planter for trees, poles and other vertical surfaces
US20230240206A1 (en) Tree shelter
EP1720403A1 (en) Support device for the cultivation of macroorganisms in marine waters
US20090056781A1 (en) Shelter System
AU653935B2 (en) Tree shelters
US5456044A (en) Tomato pot
US6708446B2 (en) V-strap tree stabilizing assembly
GB2213033A (en) Plant protector
NZ194678A (en) Cloche frame with inverted u-shaped channel members and tensioned wire for securing plastics sheet
US20060150478A1 (en) Plant protection apparatus
US6128851A (en) Tree support assembly
JP2006299544A (en) Slope greening structure
US11547064B2 (en) Device for growing plants above a selected surface
GB2273117A (en) Support plank
GB2222927A (en) Stakes
GB2257005A (en) Plant shelters.
GB2388762A (en) Tree shelter
US20060042160A1 (en) Tomato stake
FI104144B (en) Protective device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19871127

17Q First examination report despatched

Effective date: 19900730

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920102

Ref country code: LI

Effective date: 19920102

Ref country code: CH

Effective date: 19920102

REF Corresponds to:

Ref document number: 70944

Country of ref document: AT

Date of ref document: 19920115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3683285

Country of ref document: DE

Date of ref document: 19920213

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: TUBEX LIMITED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: TUBEX LIMITED

ITF It: translation for a ep patent filed

Owner name: DOTT. FRANCO CICOGNA

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19921031

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19931028

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19941006

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19941025

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19941031

EAL Se: european patent in force in sweden

Ref document number: 86905894.1

BERE Be: lapsed

Owner name: TUBEX LTD

Effective date: 19941031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19951002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19951003

EUG Se: european patent has lapsed

Ref document number: 86905894.1

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960930

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19961018

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19961031

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971031

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19971002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051002